- controls the initial frequency
- controls how much the envelope follower responds to the input signal
An envelope follower/filter combination translates the normal dynamic properties of your axe into modulated timbral changes as well, you could think of it as an automatic wah-wah pedal.
Independent Initial Frequency and Sensitivity knobs give you the control you need to realize a wide range of effects and allow the Motion Filter to be used with either electric bass or guitar. You won't believe that so much funk and soul can be squeezed into such a tiny box.